You are awesome.
I am definitely going to give that sound thing one last go, even if just for the experience, etc. etc.
When your guide says:
or manually edit the registry of your wineprefix
What is my "wineprefix"? Also when it says:
WINEPREFIX="your prefix path here" regedit alsareg.reg
What is my prefix path?
Normally to run Wine's regedit I just type:
wine regedit
I've never heard of wineprefix, so a little confused.